BSL PRO 4 Manual - Biopac

136 BSL PRO ManualABSFUNCTIONACOSRESULTReturns the absolute value of each data point.Computes the arc cosine of each data point in radians.AND(x, y, …) Computes a logical “and” operation for its arguments. Accepts up to eight (8)arguments and evaluates to1 if all of its arguments are non-zero values.0 if one of its arguments is zero.ASINCalculates the arc sine of each value in radians.ATANComputes the arc tangent of each sample point.CEIL(x)Computes the ceiling function (the closest integer larger than the value x).COND(T, A, B, C) Three-way conditional takes four arguments:COND(test_expr, neg_test_value, zero_test_value, pos_test_value)Evaluates test_expr and if< 0, returns neg_test_value= 0, returns zero_test_value> 0, returns pos_test_valueCOSReturns the cosine of each data point.COSHComputes the hyperbolic cosine of each selected valueEQUAL(x, y, …) Performs a Logical equal (numerical comparison) of its arguments. Accepts up toeight (8) arguments and evaluates to1 if all of its arguments are equal.0 if one of its arguments is not equal to the others.EXPTakes the e x power of each data point..FLOOR(x) Computes the floor function (the closest integer less than the value x).IF(T, A, B)ISINF(x)ISNAN(x)LESS(x, y)Two-way conditional takes three arguments:IF(test_expr, true_value_expr, false_value_expr)The conditional evaluates test_expr and ifnon-zero, returns true_value_expr0, returns false_value_exprFilters out infinities and unrepresentable numbers from data; important becausesuch values can cause erratic behavior in autoscaling and other operations. Use totest whether any expressions have resulted in floating point overflow and havegenerated numbers too large to be represented in the computer. Evaluates to1 if x is inf, the floating point representation of infinity.0 if x is NaN or a real-valued floating point number.“Is not a number” can be used to test whether any expressions have resulted infloating point errors such as division by zero. Use to ensure that the output oftransformations and equations does not produce numbers that BSL PRO cannotdisplay. Evaluates to1 if x is NaN, the invalid floating point number.0 if x is inf or a real-valued floating point number.Performs a numerical comparison of its arguments and evaluates to1 if x is less than y.0 if x is greater than or equal to y.LOGLOG10Computes the natural logarithm of each valueReturns the base 10 logarithm of each valueVisit the online support center at www.biopac.com